Link external sources - 1st group

1. Repository registries: Re3data.org (done)
2. Metadata schemata: The URL for the Metadata Standards Catalog is: http://rdamsc.dcc.ac.uk/ Instructions for using the API are here: https://github.com/rd-alliance/metadata-catalog-dev/blob/master/README.md Also look at fairsharing.org to see what they have
3. Services: eInfraCentral
4. Funders: funder registry https://www.crossref.org/services/funder-registry/
5. Formats: Pronom file format registry (https://www.nationalarchives.gov.uk/PRONOM/Default.aspx ) (done)
6. Grants: OpenAIRE APIs (done)
7. Researcher: ORCID Apis for researchers
8. Data catalogues: DataCite
9. Data catalogues: OpenAIRE (harvests Zenodo), sizing: 1m entries